
Algebra 2
Can someone check my answers. Write the following equations in standard form. 1) x^2  2x + y^2 + 4y = 11 answer: (x1)^2 + (y+2)^2 = 16 2) 4x^2 + 24x  y + 34 = 0 answer: y = 4(x3)^2 + 2 3) The graph of which equation is a circle? A. 5x^2 + 10x = 9 +
asked by Troy on April 7, 2008 
English
“One day, as I scanned the sandy expanse of Northern Africa, I couldn’t find any of the familiar landmarks—colorful outcroppings of rocks in Chad, irrigated patches of the Sahara. Then I realized they were obscured by a huge dust storm, a cloud of
asked by quick help needed on May 10, 2016 
English
“One day, as I scanned the sandy expanse of Northern Africa, I couldn’t find any of the familiar landmarks—colorful outcroppings of rocks in Chad, irrigated patches of the Sahara. Then I realized they were obscured by a huge dust storm, a cloud of
asked by quick help please on May 8, 2016 
Grammar
Punctuate correctly. 1. Plier's Grip 2. If your calling the repairman, wait; the TVs working fine now. 3. Our apartment is downtown; there's is uptown. 4. Then, the witness continued, we heard someone yell Who's in there? 5. Could you find the article
asked by Anonymous on June 11, 2013 
trig
A plane has an airspeed of 200 miles per hour and a heading of 28.0°. The ground speed of the plane is 207 miles per hour, and its true course is in the direction of 38.0°. Find the speed and direction of the air currents, assuming they are constants.
asked by bryan on November 29, 2012 
algebra
In 2000, 49% of the residents in a large city regularly used newspapers for getting news and this has decreased at an average rate of approximately 1.3% per year since then. Find a linear function in slopeintercept form that models this description. The
asked by Bob on September 11, 2012 
math gr.10
Hi! I have been stuck on this problem for the past 20 minutes. Please help! A rectangular garden 30m by 40m has two paths of equal width crossing through as shwon. Find the width of each path if the total area covered by the paths s 325m^2. ()  represents
asked by jamie on May 11, 2011 
Physics
A projectile is fired straight up from a cliff which is 200 feet above ground with an initial velocity of 220 ft/sec. Assume that the only force affecting the projectile during flight is from gravity which produces a downward acceleration 32 ft/sec^2. Find
asked by Marina on December 8, 2010 
Algebra
Hiya! I have a function here: y = x^2  4x  32 I have some questions about it. 1. I think this parabola opens up. Am I correct? Can you explain how you know weather it opens up or down? 2. Can you tell me what the axis of symmetry and the vertex of this
asked by Student on February 28, 2014 
physics
A man stands at the midpoint between two speakers that are broadcasting an amplified static hiss uniformly in all directions. The speakers are 28.0 m apart and the total power of the sound coming from each speaker is 0.602 W. Find the total sound intensity
asked by Anonymous on December 5, 2014 
economics
Searches related to Searches related to In a study of 100 firms,the total costÃƒâ€šÃ‚Â© was assumed to be dependent on the rate of output (X1) and the rate of absenteeism (X2).The means were: C=6 X1=3 X2=4.the matrix showing sums of squares and
asked by tati on January 12, 2017 
Math
Hi! Okay so I started to attempt this math problem; 3cot^2x1=0. However, I'm a little stuck. My teacher wants me to find the Location on The Unit Circle, Period, and General Solution. Can someone check what I have and help me with the rest? 3cot^2x1=0
asked by Oscar on January 26, 2015 
Chemistry
A metal, , of atomic weight 96 reacts with fluorine to form a salt that can be represented as . In order to determine and therefore the formula of the salt, a boiling point elevation experiment is performed. A 9.18 sample of the salt is dissolved in 100.0
asked by Robin on February 20, 2011 
Chemistry
A metal, , of atomic weight 96 reacts with fluorine to form a salt that can be represented as . In order to determine and therefore the formula of the salt, a boiling point elevation experiment is performed. A 9.18 sample of the salt is dissolved in 100.0
asked by Robin on February 20, 2011 
All
What does a 71% equal? im worried about my grades Anyone? i really need help It all dependes upon the instructor's grading scale. Most give a syllabus at the beginning of the semester which tells you how grades are assigned, the number of tests during the
asked by Roxy55 on September 11, 2006 
physics 111
A runner times his speed around a circular track with a circumference of 0.508 mi. At the start he is running toward the east and the track starts bending toward the north. If he goes halfway around, he will be running toward the west. He finds that he has
asked by bob on September 14, 2007 
math
All the instructions say is: Applications The United States is China's largest export market. Imports from China grew about 82 billion dollars in 1999 to 152 billion dollars in 2003. Let x=0 correspond to 1990, find the amount of imports in 2006. Can
asked by amy on November 6, 2006 
Statistics
Any ideas please? Simple random sample of voters will be taken in a large state. Researchers will construct an approximate 95% confidence interval for the percent of the state¢s voters who will vote for Candidate A. Find the minimum sample size needed to
asked by Andrew on July 24, 2013 
ecnometrics
Searches related to Searches related to In a study of 100 firms,the total cost© was assumed to be dependent on the rate of output (X1) and the rate of absenteeism (X2).The means were: C=6 X1=3 X2=4.the matrix showing sums of squares and cross products
asked by tati on January 12, 2017 
math
The velocity function (in meters per second) for a particle moving along a line is given by v(t)=t3–4t2. Find the displacement and the distance traveled by the particle during the time interval [1,6]. (Hint: Draw a graph of the velocity function.) Your
asked by kitor on January 25, 2014 
Statistics
It has been reported that 48% of teenagers play video games on their phones. A random sample of 60 teenages is drawn. Find the probability that the proportion of teenagers in the sample who play videos games on their phone is less than 0.499 . Write only a
asked by Obi on October 18, 2015 
Trig.
A statistician is analyzing data to find a model. She has determined the following characteristics of the data. Which characteristics of the data defined the period? The initial value is 5 all of the values are negative the difference between the
asked by Benny on March 27, 2018 
physics
A man stands at the midpoint between two speakers that are broadcasting an amplified static hiss uniformly in all directions. The speakers are 37.0 m apart and the total power of the sound coming from each speaker is 0.448 W. Find the total sound intensity
asked by David Egan on February 8, 2015 
sentences
Please note that we don't do students' homework for them. Once YOU have tried to write a sentence for your assignment, please repost. Then someone here will be happy to give you feedback. =) who can you put a sentence that has including eveyone including
asked by Writeacher on March 5, 2007 
Physics
A simple pendulum consists of a light string 1.70 m long with a small 0.490 kg mass attached. The pendulum starts out at 45º below the horizontal and is given an initial downward speed of 1.50 m/s. find: At the bottom of the arc, determine the centripetal
asked by Luis on June 25, 2011 
math
the trajectory, of the projectile satisfies the following equation,wher g is the acceleration due to gravity, y=mxg/2v^2(1+m^2)x^2 where y as the vertical rise, and x asthe horizontal component of the displacement. A football is kicked with initial
asked by walter hughes on October 20, 2013 
Physics help pls
Pls help me I have a test tmrw A block with mass 5kg slides along a horizontal floor under the action of a force 20N applied upward at an angle θ to the horizontal. The coefficient of kinetic friction between the block and the floor is μk = 0.4. Find the
asked by Jamila on March 21, 2016 
physics
You drop a rock from rest out of a window on the top floor of a building, 50.0 m above the ground. When the rock has fallen 3.80 m, your friend throws a second rock straight down from the same window. You notice that both rocks reach the ground at the
asked by Anonymous on September 17, 2014 
Statistics
3.The lifespan of 300 Giant turtles is found to follow a Normal distribution ~ N(70,144). (a)What is the standard error for this sample’s mean? (b) What is the probability of a turtle living more than 85 years? (c)What is the probability of a turtle
asked by waqas on August 17, 2011 
Physics
Starting with the kinematics equation x = vot + ½ at^2, derive an expression relating the acceleration and initial velocity of an object to two paired position and time measurements. In other words, if an object's position is x1 at t1, find the
asked by beanstalk1 on September 11, 2012 
Electricity
In a series circuit, there are 4 resistor with one battery cell. (there's no diagram for this question) The battery cell = 100v r1 = 3kΩ r2 = 4kΩ r3 = 1kΩ, P=100mW r4 = ? find the following quantities: 1) the circuit currents 2)the total resistance of
asked by anonymous on April 14, 2019 
Physics
A 2.00 kg block is pushed against a 400N/m spring, compressing it 22.0 cm. When the block is released, it moves along a frictionless horizontal surface and then up an incline. The angle of the incline is 37.0 degrees and the coefficient of kinetic friction
asked by Timo on June 29, 2011 
Math
The Dig It Project is designing two gardens that have the same perimeter. One garden is a trapezoid whose nonparallel sides are equal. The other is a quadrilateral. Two possible designs are shown at the right. a. Based on these designs, is there more than
asked by Meow on May 9, 2016 
Statistic
At peak periods 15 of attempted logins to an email service fail. login attempts are independent and each has the name probability of failing. Ann logs in repeatedly until she succeeds A. Find the probability that Ann needs to log in atleast four times
asked by Eric on April 11, 2017 
accounting
here is what I need to do; however my problem is I can not find where I can download the financial information on any corporation Select an American corporation. Visit its website and download the Income Statement, Statement of Stockholders Equity, Balance
asked by Patiance on July 1, 2013 
Math
A projectile is fired straight up from a cliff which is 200 feet above ground with an initial velocity of 220 ft/sec. Assume that the only force affecting the projectile during flight is from gravity which produces a downward acceleration 32 ft/sec^2. Find
asked by Marina on December 8, 2010 
Physics
A car travels due east with a speed of 40.0 km/h. Raindrops are falling at a constant speed vertically with respect to the Earth. The traces of the rain on the side windows of the car make an angle of 54.0° with the vertical. Find the velocity of the rain
asked by Aly on September 29, 2015 
crt 205
The Opposing Viewpoints Resource Center database at the University Library provides a wealth of arguments to which you can apply your critical thinking skills. Find this database by logging into to the Library and selecting the Article
asked by Anonymous on August 19, 2008 
language arts
What's a simple subject,complete subject and predicate, simple predicate Thank you for using the Jiskha Homework Help Forum. Here is a grammar site you might like: http://www.chompchomp.com/menu.htm Click on Terms and then find the topic you need help
asked by issa on September 28, 2006 
Astronomy
The volume of a ball is given in terms of its radius by V=4π3R3. Use this to find the average density of Saturn, i.e. the mass per unit volume. Use Earth’s mass in kg from the Table of Constants to express your answer in kgm3. Note for comparison that
asked by sam on December 23, 2012 
English Lit
I really think I have it now. I'm not sure what the dilemma is, its either the lifestyle or the fact that she told Paul that the father had no luck so he tried to help out ending in tragedy. This is a story of a middle class English family that find
asked by Rocking Horse Winner revision on November 19, 2009 
number theory
Find the least positive integer that leaves the remainder 3 when divided by 7, remainder 4 when divided by 9, and remainder 8 when divided by 11
asked by john on August 1, 2012 
MATH
I am trying to find the rule for a function table with input 2, output 30; input 3, output 48; input 4, output 66.
asked by Lance on March 18, 2015 
Geometry
the measure of the supplement of an angle is 40 more than two times the measure of the complement of the angle find the measure of the angle
asked by Megan on October 11, 2010 
Math
Find the percent of increase or decrease. The price of a radio changes from $40.00 to $44.00. A. 10% decrease B. 10% increase C. 36.4% decrease D. 40% increase
asked by Anonymous on November 27, 2018 
11th grade
the measure of an angle is 8 degrees less than 3 times the measure of the angle's supplement. find the measure of each angle
asked by taylor on August 30, 2010 
algebra
here is a rational expression, 20+2x/5x for what value of x is the rational expression equal to zero? 20+2x/5x 20/5+2xx 4+2xx 4+x I'm not trying to solve an equation. i am trying to find the value of x in this rational expression.
asked by bailey on January 29, 2007 
math
The measure of angle abc is 85. The measure of angle abd is 45. The measure of angle dbc is x. Find the value of x.
asked by aiden on April 9, 2019 
Math
How do I find the reciprocal of two numbers? If I have two fractions to choose from, how do I choose one as the reciprocal? Ex; 1/3 divided by 5/6. How do I choose one as the reciprocal?
asked by ILTHSM_ on October 17, 2018 
math
in isosceles angle ABC, the length of leg AB is 2x+10 and the length of the leg BC is 4x  18. Find the length of each leg.
asked by chan on October 2, 2012 
geometry
Find the measure of each angle of the supplementary angles, given the measure of angle 1 = (10x + 53) and the measure of angle 2 = (5x  8).
asked by Anonymous on September 15, 2010 
maths
if 1 balle balle =69 shabba shabba then find the value of sin balle plus cot shabba square
asked by ARYAN on May 29, 2019 
algebra
if 6 notebooks + 2 binders = 23.52 ans 3 notebooks + 4 binders = 25.53 how do I solve to find out what the notebooks and binders each cost?
asked by kathy on March 20, 2014 
maths
two numbers are in a gp,twice the product of the 1st two numbers is 9times more than the product of the last two numbers.if the product of all the number is 9.find the gp.
asked by adeyemi on January 28, 2016 
Trigonometry
Find the general solution of the following equation. sin (5x) = cos (3x) sin (6x) sin (x) = cos (3x) cos (4x) Thanks for your help :)
asked by Tommy on July 22, 2008 
math
find the perimeter of a triangle if one side is 28 feet , another side is fourninth the perimeter , and the third side is twofifth the perimeter.
asked by TALAL on March 10, 2011 
algebra
find the slope and the yintecept f(x)= 9x7. The slope is_______ and the yintecept is (0, ___) I came up with the slope is 2 and the yintecept is (0, 16) am I close
asked by sonia on October 22, 2009 
algebra
Three numbers are such that the first number is 10 less than twice the second and the second number is 4 more than three times the third. Twice the second number is equal to the sum of the first and third numbers. Find the numbers
asked by Kevin Kirkpatrick on November 28, 2015 
math
If z=r^2 tan^2(theta),x=r cos(theta),y=r sin(theta), find the {partial^2 z}/{partial(x)partial(y)}
asked by Jiang on January 6, 2019 
Trigonometry
An airplane flew 300 miles at a bearing of N65°E from airport A to airport B. The plane then flew at a bearing of S38°E to airport C. Find the distance from A to C if the bearing from airport A to airport C is S60°E.
asked by Karen on November 6, 2014 
math
The speed of a train A is 8mph slower than the speed of train B. Train A travels 230 miles in same time it takes train B to travel 270 miles. Find the speed of each train.
asked by Karen on April 21, 2010 
Algebra
The speed of train A is 6 mph slower than the speed of train B. Train A travels 200 miles in the same time it takes train B to travel 230 miles. Find the speed of each train?
asked by Jacqueline on July 11, 2010 
Calculus
Find d/dx integral(with upper bound of 4x and lower bound of 1) of square root of t^2 +1 dt. A. sqrt(4x+1) B. sqrt(16x^2+1) + sqrt(2) C. 4 sqrt(16x^2+1) D. sqrt(16x^2+1)
asked by Justin on July 8, 2019 
math
What strategy did you use in solving this problem? 22. Suppose that you wanted to find the whole numbers represented by each of the letters in the following addition problem: Which problemsolving strategy might be most helpful to you in solving this
asked by kim on January 20, 2010 
algebra
The speed of train A is 6 mph slower than the speed of train B. Train A travels 230 miles in the same time it takes train B to travel 260 miles. Find the speed of each train?
asked by kathy on March 10, 2010 
math
the speed of a train a is 6 mph slower than the speed of train b. train a travels 220 miles in the same time it takes train b to travel 250 miles. find the speed of each train
asked by summer on August 19, 2010 
College Algebra
Find the inverse of the function below. Graph the function below and the inverse function. Determine the domain, range, and asymptotes of the function below and the inverse function. Please show all of your work. Show both graphs. f(x)=2ln(3x)+6
asked by Jo on January 18, 2012 
math
use the clues to find the 7th digit mystery number. * it is between 7 and 8 million * it contains all of the digits greater than 1 and less than 8 * the hundred thousands digit is 3 * the ten thousands digit and the thousand digits are the same * the tens
asked by edwin on November 30, 2007 
chemistry
if the pH of a halfneutralized acid solution is 5.4, how would you find the [H+] of the the solution. There is 1.0 g of Lascorbic acid which was dissolved in 100 ml of water. That solution was split in two and 50 ml of the solution was titrated with 0.2
asked by tom on April 17, 2008 
Adv biomechanics
a 1kg ball is thrown vertically. If the ball has a velocity of 8 m/s at release, please find: the maximal height that the ball can reach and the time it took for the ball to reach the maximal height and how long does it take for the ball to return to
asked by Cam on June 13, 2019 
math
A ladder rests against a vertical pole. The foot of the ladder is sliding away from the pole along horizontal ground. Find the inclination of the ladder to the horizontal at the instant when the top of the ladder is moving 3 times as fast as the foot of
asked by My6ws4 on October 15, 2016 
math
A ladder rests against a vertical pole. The foot of the ladder is sliding away from the pole along horizontal ground. Find the inclination of the ladder to the horizontal at the instant when the top of the ladder is moving 3 times as fast as the foot of
asked by binh on October 18, 2016 
science HELP ASAP!!!!!!!
1. in which biome would you find the main types of plants life to be grasses and nonwoody plants? (1 point) 2. Which of the following determines the type of biome classification that will be made for a particular region? (1 point) 3. which of the following
asked by annonomys on March 4, 2014 
College Physics
A small bead of mass m is free to slide along a long, thin rod without any friction. The rod rotates in a horizontal plane about a vertical axis passing through its end at a constant rate of f revolutions per second. Show that the displacement of the bead
asked by Roger Cole on February 13, 2011 
Physics
(a) A narrow beam of light containing yellow (580 nm) and green (550 nm) wavelengths goes from polystyrene to air, striking the surface at a 30.0º incident angle. What is the angle between the colors when they emerge? (b) How far would they have to travel
asked by Elizabeth on July 27, 2016 
History
Could someone please find me a website that has great information on Business enterprise in America so I can make a timeline on it. Specific dates that I need are 1906, 1913, 1914 , 1930, 1939. I would greatly appreciate it. This site seems to have the
asked by Dave on April 29, 2007 
Physics
The roller coaster starts with a velocity of 16 m/s. One of the riders is a small girl of mass 26 kg. Find her apparent weight when the roller coaster is at locations B and C. At these two locations, the track is circular, with the radii of curvature
asked by R on May 8, 2013 
physics
A horizontal disc rotating freely about a vertical axis makes 90 revolutions per minute. A small piece of wax of mass “m” falls vertically on the disk & sticks to it at a distance “r” from the axis. If the number of revolutions reduces to 60, then
asked by hriday on December 30, 2008 
Mechanics
A constant force of 40newton is applied tangentally to the rim of the wheel with 20cetimetre radius the wheel hs moment of intial 30kg find (a)angular acceleration (b)angular speed after 4second frm rest (c)d number of revolution made in(d)show that d work
asked by Gift on December 27, 2015 
calculusdomain
Hello, I would greatly appreciate your input. I just need some reassurance that I'm going about this question the right way. I am to find out where h(x)=x*(x1)^(1/3)is increasing and decreasing. so after I did some solving I found my critical points to be
asked by mary on March 15, 2012 
Physics
A small bead of mass m is free to slide along a long, thin rod without any friction. The rod rotates in a horizontal plane about a vertical axis passing through its end at a constant rate of f revolutions per second. Show that the displacement of the bead
asked by Roger Cole on February 10, 2011 
MATH
Really need help with this: You purchase a computer for $875.00 plus 5% sales tax. You decide to finance it through the store's 0% program for 12 months. The terms state that you must pay $100.00/month and that if you miss a payment, you will be assessed a
asked by Sandy on April 21, 2015 
English
I have to do a report my tomorrow on Robert Mugabe. I have alot of info from wikipedia, but the paper is still somewhat broken up, and i don't really understand why he is a dictator or what he did. ANy help?
asked by Shaila on May 29, 2007 
Physics
A small bead of mass m is free to slide along a long, thin rod without any friction. The rod rotates in a horizontal plane about a vertical axis passing through its end at a constant rate of f revolutions per second. Show that the displacement of the bead
asked by 0255872 on February 11, 2011 
Word Problem
Faced with rising fax costs, a firm issued a guideline that transmissions of 10 pages or more should be sent by 2day mail instead. Exceptions are allowed, but they want the average to be 10 or below. The firm examined 35 randomly chosen fax transmissions
asked by Marilyn on September 28, 2008 
Algebra
The Badys and their maid, Alice, took a trip to Hawaii for their summer vacation. The travel agent told Ike that the trip would cost $210 for each child plus another $315 per adult. According to Ike Bady’s credit card receipt, the trip cost a total of
asked by Anonymous on January 12, 2015 
Trigonometry
Could someone please help me out with this? I've read my text book, but can't seem to figure it out. And could you please show me how to do them? The Earth travels in a circular orbit around the Sun at 29.79 km/sec. If the radius of the orbit is 1.496 x
asked by Hannah on June 4, 2013 
math,correction
Is this correct factor by grouping: x^35x^2+2x10 My answer: (x^2+2)(x5) *question do i need to go further?* Errm dats almost done exept derz one more step, as you still need to chnage the quadratic equation into 2 linear ones as a Cubic equation has 3
asked by jasmine20 on April 20, 2007 
Math
Really need help with this: You purchase a computer for $875.00 plus 5% sales tax. You decide to finance it through the store's 0% program for 12 months. The terms state that you must pay $100.00/month and that if you miss a payment, you will be assessed a
asked by Sandy on April 20, 2015 
reading
In the book Rachel Carson I'm suppose to agree or disagree about "a person can be a professional scientist or writer but rarely both".the chapter is 3 it says use details and examples from the chapter to support your decision and it's hard for me and I
asked by maria on February 6, 2014 
woburn
We consider a man of mass m = 77 kg as shown in the figure below using crutches. The crutches each make an angle of è = 26 with the vertical. Half of the person's weight is supported by the crutches, the other half is supported by the normal forces acting
asked by shariva on October 4, 2010 
Physics helpppp
250 g ball of putty moving horizontally at 9 m/s collides with and sticks to a block lying on a frictionless horizontal surface. If 20%of the kinetic energy is lost, what is the mass of the block? What i did Mass1 = 0.25 kg Mass 2 =? Kinetic initial =
asked by PHYSICSSSS HELP on April 19, 2016 
Intermediate algebra, concepts and graphs
a bullet is fired into the air with an initial upward velocity of 64 fps from the top of a building 80 feet high. The equation that gives the height of the bullet at any time (t), is h=80+64t16t^2. Find the times at which the arrow will be 128 feet in the
asked by Lisa on June 12, 2013 
physics
a stainless steel orthodontic wire is applied to a tooth.the wire has an upstretched length of 3.1cm and a radius of 0.11mm.if the wire is stretched 0.10mm,find the magnitude and direction of the force on the tooth.disregard the width of the tooth assume
asked by joseph on November 19, 2018 
calculus
Find the volume of the solid generated by revolving the region about the given line. The region is in the first quadrant bounded above by the line y= sqrt 2, below by the curve y=secxtanx, and on the left by the yaxis. Rotate the region about the line
asked by ashley on May 23, 2011 
physics
Tom has a mass of 67.2 kg and Sally has a mass of 58.5 kg. Tom and Sally are standing 23 m apart on a massless dance floor. Sally looks up and she sees Tom. She feels an attraction. If the attraction is gravitation, find its magnitude. Assume both can be
asked by Andy on January 24, 2015 
math
did you know when you try to find the least commen multiple of 3 numbers you have to divide by two after you get your answer my class (ms.lott in texas) told us that for some reason its doubling the number so always divide by two once you have crossed out
asked by alyssa on November 28, 2010 
English
Which wife is more virtuous to her husband Desdemona or Emilia in the play Othello? Please use examples from the play to describe each womans interaction with her husband and each woman's reaction to her husband. I think you will be able to find the answer
asked by Christina on October 21, 2006 
trig
To help a sapling (young tree) grow straight, a gardener attaches three guy wires to it and the ground. She places the wires two feet below the top of the tree. If the wires are ten feet long and each makes an angle of 58 degrees with the ground, find the
asked by Tony on May 8, 2017 
Math  derivative of sinusoidal (check)
a) Find a function y=f(x) that satisfies the differential equation dy/dx = fifth derivative. This is one of the questions in my practice test, I tried the basic equation of the trig function such as f(x)= sin(x) or f(x)=sin(x) however in the fourth
asked by Farah on November 29, 2010
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